Resistance to cephalothin in vivo associated with increased cephalosporinase production.
D000328:Adult; D000619:Aminohydrolases / Q000378:metabolism*; D000667:Ampicillin / Q000627:therapeutic use*; D002512:Cephalothin / Q000627:therapeutic use*; D004927:Escherichia coli Infections / Q000188:drug therapy*; D005260:Female; D006801:Humans; D010403:Penicillin Resistance; D014517:Ureteral Obstruction / Q000188:drug therapy*
D000667:Ampicillin; D000619:Aminohydrolases; D002512:Cephalothin